HI everyone,
Am sure everyone must have had this issue but for the life of me, I haven't been able to find out how i can clean, hide the dirt and plaster stuck in the corner of my window. Also, there's some existing stuff thats been stuck and i've tried sugar soap, white spirit, UD40 and permutations and combinations of all this but haven't been able to get rid of it.
I've attached a photo that might explain the problem I have.
Thanks in advance for any advice :)